react-native/Libraries/NavigationExperimental/Reducer/__tests__/NavigationFindReducer-test.js

46 lines
1.1 KiB
JavaScript

/**
* Copyright (c) 2015-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*
* @flow-broken
*/
'use strict';
jest
.unmock('NavigationFindReducer');
const NavigationFindReducer = require('NavigationFindReducer');
describe('NavigationFindReducer', () => {
it('handles basic find reducing with strings', () => {
let reducer = NavigationFindReducer([
s => s,
s => s + '_yes',
s => 'nope',
]);
let route = reducer('input');
expect(route).toBe('input_yes');
reducer = NavigationFindReducer([
(s, action) => s,
(s, action) => 'origRoute',
(s, action) => 'firstChangedState',
]);
route = reducer('origRoute', 'action1');
expect(route).toBe('firstChangedState');
reducer = NavigationFindReducer([
(s, action) => s,
(s, action) => action,
]);
route = reducer('inputState', 'action2');
expect(route).toBe('action2');
});
});